Bushing for loose pulleys.



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.l NITnD STATES PATENT @Friess WILLIAM o. HARRIS, Or OI-IIOAGO, ILLINOIS.

Busi-UNG FOR LOOSE PuLLE'Ys.

SPECIFICATION forming part of Letters Patent No. 648,204, dated April 24, 1900. i Application filed September 3Q, 18.99. f Serial No. 732,163. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM C. HARRIS, a

citizen of the United St,ates,'residing at Chicago, inthecountyof Cook and State of Il1iv nois, have invented certain -new and useful Improvements in Bushings for Loose Pulleys;

and I do hereby declare the followingto be,y

a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. f '1 I .My invention relates to a novel construc ltion in la bushing for loose pulleys, the object being to provide a device of this character which can be readily removed and replaced without removing the pulley from the shaftor taking down the shaft; and it consists in the features of construction hereinafter fullydescribed and claimed.

In the accom )anvinv drawings illustrating 2: t a y o, my Invention, Figure l 1s a fragmentary sec.

tional View through the' hub portion 'of a pulley, showing my bushing therein in Aelevaline 2 2 of Fig. l; y

My bushing consists of two parts A and B, which when fitted together form a cylinder. Each of said parts A and'B forms one-half or approximately one-half of such cylinder without being semicylindrical, the meeting faces of each being cut on an incline-that isgon a plane inclined to the axial line of said cylin,

dew-so that one end of each section is greater than semicircular and the other end of each is less than semicircular, the smaller end of one section andv thev larger end of the other smaller end D foremost and is forced into position relative to said section A in any suitable manner. By this means the bushing is firmly wedged into the hub without becoming wedged upon the shaft. An opening E is bored into said bushing on the dividingline between the sections,so that a practically- Fig. 2 is a transverse section4` onl the semicircular recess is cut into each section. When in place on said pulley, said opening E receives the end of la set-screw F, passing throughthe hub of the pulley, whereby said bushing is further held rigid with said pulley and the sections A and B heldagainst relative displacement. Y Said bushing is vpreferably flanged at one end, as at G, -to provide means for withdrawing same from vthe hub. .To'this end said flange Gion the section B is provided with a' screw-threaded opening adapted to receive a set-screw (shown in dotted'lines) which is adapted to bear against the end of the hub,I

so that by .turning same continuouslyin one direction the section in which it is mounted x .will'bewithdrawn, thesetscrew H being preferably used for this purpose.

I claim as my invention-v l. A-bushing for loose pulleys and the like, comprising two practicallysemicylindrical sections adapted, when fitted together,to form a cylinder, the meeting'faces of said section 'being cut on a plane ,inclined to and'intera secting'the axial line of said cylinder, and y there being an approximatelycylindrical recess kin one of the meeting faces of each section adapted to form an opening in said cylinder, and an approximatelycylindrical -set-`screw adapted to enter said opening,

whereby both sections of said cylinder are held rigid with a' pulleyand each section thereof held against relative displacement.

`2. A bushing for loose pulleys and the like, comprising two practically-semicylindrical sections adapted, when fitted together, to

form acylinder,there being an approximately-A cylindrical opening composed of two semicylindrical recesses formed' in the meeting faces ofsaid sections, and an approximately* cylindrical set-screw adapted to fit said opening and bear against the meeting faces of each of said sections to prevent their Withdrawal from the pulley, a flange at one end of each of said sections adapted to form an annular flange at one endof said cylinder, one flange havinga screw-threaded opening, and a set-screw adapted to enter said threaded opening to loear against the hub of the pulley to withdraw said bushing.

3. A bushing for loose pulleys and the like, comprising two practically-semicylindrical IOO sections adapted, when fitted together, to :Ln annular flange at one end of said cylinder,

form a cylinder, the meeting faces of said. there being @screw-threaded opening in'one sections being cut on a plane inclined t0 and of said ianges and a setscrew adapted to t intersecting the axial line of said cylinder, said opening and to bear against the hub of I5 5 there being a recess in one of the meeting the pulley to withdraw said bushing.

faces of each section adapted to form an open- In testimony whereof I affix my signature ing in said cylinder, a set-screw inserted in presence of two Witnesses. therein, whereby said cylinder is held rigid VILLIAM C. lIARRlS.

with a pulley and the sections thereof held lVtnesses: ro against relative displacement, a flange at one RUDOLPH WM. LOTZ,

`| end of each of said sections adapted to form l ARTHUR C. LOTZ. 

